Large Eddy Simulation of hydrogen explosions and safety characteristics
Understanding hydrogen explosion characteristics is important for the future use of hydrogen as a clean fuel.
Hydrogen is considered as a promising future energy carrier because of the high energy density on mass basis, and its carbon-free property. Hydrogen can be generated from different sources, including fossil fuels, renewable fuels, or electrolysis of water. Hydrogen can also be utilised in many ways. Hydrogen vehicles using Fuel Cell technologies, direct hydrogen burning in internal combustion engines, burning hydrogen mixtures in gas turbine systems are some examples where hydrogen can make a significant impact to reduce the environmental damage caused by current fossil fuels. Understanding safety concerns of hydrogen are necessary for safe operation of hydrogen usage in the future. In this project the large eddy simulation (LES) technique based advanced computational models are developed to simulate hydrogen explosions and characteristics. Shown in Figure 1 is a LES result of a hydrogen explosion simulation of Sydney University hydrogen explosion experiments.
Professor Weeratunge Malalasekera - Professor of Computational Fluid Flow and Heat Transfer
"Our simulation group has been in the forefront of developing accurate and validated numerical simulation techniques for combustion and explosion applications."